Comment 14 for bug 1787739

Note that in this last set of examples you were using the systemd resolver (127.0.0.53). Which might be setup (or not) to query the bind server you are testing.

I suggest to always start from a clean slate in that case. You can clear the systemd resolver cache by running:

sudo systemd-resolve --flush-caches

Another interesting check, if you keep using that resolver, is systemd-resolve --status